Jack.



- A.*F. DIXON & W. E. FREEMAN.

JACK.' APPLAIGATION PILEDAPR, @1911,

Patented. Nov. 12, `1912.

3 SHEETS-SHEET'I.

A.' RDIXON a; W. T-1. FREEMAN. .TACK APBLIOATIQN FILED Amm, 1911. f1,043,810, I Patented Nov.'12v,19.12.

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' UNITED "STATES PATENT Oiiiniciiil Amos F. DIXON, or NEWARK, AND

WILLIAM EDWIN FREEMAN, or DAsr ORANGE, NEW

JERSEYyASSIGNORSSTO WESTERN ELECTB'IG4 COMPANY, 4OF'NIEW YORK,l N. Y., A

CORPORATION 0F ILLINOIS.

.which is durable-'and compact, which provides a convenient means formounting the apparatus so that it will be well protected and readilyaccessible and a structure which is well adapted to andpserviceconditions to which apparatus of this type is subjected.

One feature 'of thisvinvention comprises' the arrangement of a mounting`plate for jack springs, fuses and protectors, whereby 'these variousdevices are supported in a convenient manner well insulated from alladjacent parts and thejack springs are retained in a fixed relation tothe sleeve of the jack.

1. Fin. 4 is Other features of this invention relate toA the variousdetails of the apparatus, supports andcover and other detailsof'construction.l

In the drawings-Figure 1 is a perspective of the device with the coverremoved illustrating one side of the mounting plate and' supportedparts.- Fig. 2 is a view with the cover in section illustratingtheopposite side of the mount-ing plate from that illustrated in Fig. 1.Fig. 3 is a horizontal sectional view taken upon line 3-*3 of Fig. alhorizontal sectional view taken upon line 4-4 of Fig. 2. Fig. 5 is asectional view taken upon line 5-5 of Fig. 2.

In the drawings, 5 designates a .circular base carried by a bracketmember 6 which is adapted to be secured to a pole or other support; Asshown the base 5 and bracket 6 are formed integrally, preferably bycasting, and the bracket is provided with aper- Specication of Lettersatent. Appl'ication-illed April, 1911.l

ing vertically through the base and useful ,I'mprovewithstand theAweather- .'insulating material- Patented Nov'. 1,2, 1912. serial No.slava.A

I tured lugs 7, 7, adapted to recei y'e laglscrews or bolts forsupporting thejack.v Extend- 5 is an Opening 8 through -which a forengagement with the pick springs as will hereinafter appear.. A sleeve 9formed integrally with the lbase 5 adjacent to said opening extendsdownwardly from the bottom face of saidl base and serves' as a guide forthev plugr when it is to beinserted.

Mounted upon the base 5 is a verticall larranged plate10.l This plate10'is pre pliig maybe inserted' erably formed integrally with said baseand is strengthened by I means of laterally projecting reinforcing ribs11 thereon: Later.-

`ally arranged rect-angular .openings 12 and 13 are provided near theopposite ends of said plate. Mounted upon the plate 10 between `saidrectangular openings 12 and 13 are jack and contact springs 15, 16, 17and 18 insulated from each other and fromV said plate. The inner ends ofthe jack springs 15 and 16 are arranged directly in line with theopening 8 and have their ends oiset in a vertical direction to makecontact with ring and tip contacts on a plug. Each yot the springs isbent back upon itself at its .upper end to form a sleeve 20 which istapped to receive a binding` screw 21v for securing conductors to said springs.l.As shown in Fig. 3these springs 15, 16, 17 and 1 8 are mountedupon a bracket 22 which is rigidly secured to the mounting said springsbeing insulated bracket 22.. Mounted upon one plate 10 is'a .block plate10;

face of said 25 of porcelainor like said block vbeing Secured to saidplate by means of 26. Mounted upon one side of said porcelain block 25are carbon protectors or lightning arresters 27, 27 of a type well knownin the -art and each of which comprises two carbon blocks 28 and 29supporting` between them a strip of mica 30 and all being held togetherby one end .of a spring contact 31,

"ie Opposite end .of which is rigidly secured ing post screw 32. Upontheop osite face Of -the porcelain block 25 and n jacent the Openings 12.n.nd 13 in the plate 10 are raised from said screws v26,

Vto the porcelain block-by means of a bindfi block secured to the o`plate 10. When in place upon-the j ack and `ering theopening S is' atrap door 65 whfich' mounting plate carried by said haseplate,

or projecting portions 35, 35 and 36, 36 which extend part of the waythrough said openings. `li/lounted upon said raised f'portions arefusefnclips. 37, 37 adapted toreceive and holdin a vertical positionupon the opposite sides of said springs, cartridge fuses 38, 38; Each ofthe fuse clips 37-is' secured to the porcelain block 25 by means of Vascrew 39 which extendsthrough said. bloelg, the lower ones of saidscrews being adapted Ito receive conductors 40 and el." l.

The `plate 'l0 is approximately thelsame width as the diameterA of thebasey except at its klower end where it is cut away to form notches 50,50 adapted to interlock. witha cover 5l with which the apparatusvhereinbet'ore described is protected. As shown inv Figs. 2 and 5 thecover 5l is cylindrical in shape and of adiameter lto fit snugly overthe above apparatus'and base plate. Located near the lower end of saidcover is an interior flange 52 adapted'to vrest upon the upper face vot'said base 5 when said cover` is in place.; As shown, this' ilange isprovided .lwithfoppositely located notches 53, 53 adapted as the'coveris placed over the parts or removed to engage the lmargins of the turnedthrough alslight angle'the' fla-nge 52 is brought into lockingengagement with the lower end of the plate l0 by reason of the notches50, 50. A' projecting lugk on the cover is adapted` to be brought intoengagement with a corresponding lugf on t-he bracket 6; the two lugsbeing provided with alined openings adapted to receive a padlock. l

The yconflufztors i() and 4l hereinbei'ore referred to are brought infromythe outside .f of the jack through a duct GO opening' through thcbase 5 and the bracket t3. Covis opened by the insertion ot a plug andclosed by a springt. 'l

XVe claim:

1. ln a pole jack, the combination Witlrta base plate provided with anaperture,- ofa jack springs" rigidly supported upon one face of. saidmounting plate in line with said aperture, :in-insulating block 'securedto the opposite face of'said mounting plate, and protective deviceslocated upon, the same side of'said mounting plate'fas said springsk andsecured to said mounting block. i

2. ln a pole jack, the combination with a base plate proviiled -with enaperturepof a mounting plate carried by said base Lplate and l havingopenings therethrough, jacky springs rigidlyl supported upon one faceot'v said mounting plate in line with the ieper-- ture through satflvhase plate, an insulating posite faire of saidmounting plate, fuse cipssecured to said insulating bleek adjacent to the openings in saidmounting plate, and fuses mounted in said clips.

' 3. In a pole jack, the combination with a base, of a mounting platecarried by said base, said mounting plateJ being provided with openingsnear the opposite ends thereof, jack springs secured to one face of saidmounting plate between said openings, an insulating block secured to theoppositeface of'gsaid mount-ing plate and having projections extendinginto the openings in said mounting plate and fuse clips secured to theprojections on said insulating block.

4. In a pole jack, the combination with a base plate, of a mountingplate carried by said base plate, jack springs rigidly secured to oneface of said mounting plate, an in.- sulating block secured to the`opposite face of said mounting plate,.fuses mounted upon one faceofsaid block, and carbon protectors secured to the opposite face of saidinsulating block. f

5. In a pole jack, the combination with a base plate provided with anaperture therethrough, cfa mounting plate located c'entrally of saidbaseand ext/ending at right angles thereto, jack springs rigidly securedto said'mounting plate in position to be engaged by a plug insertedthrough the Vaperture in said base, an insulating block secured to theopposite face of said mounting plate, fuses carried by said insulatingblock upon each side of said jack s rings and carbon protectors mountedu on the opposite face of said insulating bloc 6. In a pole jack, thecombination with a circular base plate, of a rectangular mounting platecarried by said base plate and extending at right anglesthereto, a coverhavingan inwardly extending flange adapted to be placed over saidplates, said llange being provided with notches: adapted to engage `themargins of said mounting plate as said cover is placed in position.

7. ln a pole jack, the combination with a circular base plate, of arectangular mounting plate carried thereby and `extending at rightangles thereto, said plate being provided with notches on its endadjacent said base plate, and a cover for said plates having aninward-ly extending annular Harige located near one end thereof, saidange being provided with notches ada ted to engage the margins of saidmounting plate as said cover is being placed in pos1tion and said flangebeing adapted to engage the notches in said mounting plate when saidcover is in position.

`8. ln a pole jack, the combination with a formed integrally therewith,a' horizontally arranged base plate formed integrally with said bracket,a vertically arranofed mount- .ing plate formed integrally with saidbase plate, a cover adapted to `fit over said mount- `supportingbracket, of a projecting' lug 125 "ing and base plates, and an integrallug scribe-our names this 4th day of April,

ycarried by said cover, said lug being adapt- A. D., 1911.

ed to be ybrought into engagement with the AMOSv F. DIXON. lug on saidbracket, the two lugs being pro- WILLIAM EDWIN FREEMAN. 5 vided Withaiined openings to receive a pad- Witnesses:

lock. IRVING MACDONALD,

In witness whereof, We. hereunto sub- MORGAN WASHBURN, Jr.

Copies of this patent may be obtained for vey cents each, by addressingthe Gonlmissoner of latents, Washington, D. C.

